Window-clamp



H. W. STRUEBING.

WINDOW CLAMP.

APPLICATION FILED (m. 28. 1920.

1,387,564. Patented Aug. 16, 1921.

PATENT OFFICE.

I HERMAN W. STRUEBING, 0F MILWAUKEE, WISCONSIN.

WINDOW-CLAMP.

Specification of Letters Patent.

Patented Aug. 16, 1921.

Application filed October 28, 1920. Serial No. 420,144.

To ail I a/mm it they (novice/ n Be it known that 1, Hanna): w. STnUnnING, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in lVin- (low-Clamps; and I do hereby declare that the following is a full, clear, and exact dc s:ription thereof.

My invention has for its object to providev a simple, light and durable window clamp comprising three strap units, which can be cheaply mainifactured. and which, when not in use, can be folded in a compact nested mass so that the several units will rest in alinement. both vertically and horizontally, whereby the parts will not project to form l ructions. which, if formed, are liable to cause damage to the person or clothing of parties using such structures.

The device is particularly adapted for use in clamping the somewhat. loosely slidable windows of motor vehicles to thereby prevent rattling. I am aware of the fact that the idea broadly of utilizing some form of clamp for the purpose specified is not new, but the problem which is solved by the invention, as herein disclosed is the arrangement of parts, so that they can be compactly nested similar to the blades of a jack knife within its handle when said device is not used. A further object of the invention is to reduce the cost in manufacture. a

With the above objects in view, the invention consists in certain peculiarities of construction and combination of parts, as hereinafter set forth with reference to the accompanying drawings.

In the drawings,

Figure 1 represents a sectional elevation of a window, having attached thereto a lamp embodying the f atures of my inven ion, the clamp being shown in its inoperative folded position to clearly illustrate that the nested parts can be attached to a frame of narrow proportions and at the same time no projections will result in the fold of such parts.

Fig. 2 is a similar view showing a clamp in its working position. and

Fig. 3 is a side elevation of the clamp in its folded position, certain parts being in section to more clearly illustrate details of structure.

Referring by characters to the drawings, A represents a sliding window and B the inner using comprising a part of the frame for the sash. Fitted to the face of the sash frame 13 is a strap bracket 1, provided with a pair of apertures 2 for the reception of retaining screws 3. The strap bracket intermediate of its ends is formed with an upset loop 4.. which loop has an aperture therein adopted to receive a clamping bolt 5. This bolt is of standard type and is provided with a squared head 5 which is fitted between the inner walls of the loop 4, whereby itis held against turning.

One end of the strap bracket is provided with a pivot stud 6 upon which is mounted an arm 1', having a bifurcated inner end into which is pivotally mounted a clamping roller 8. the said roller being preferably formed from slightly resilient material. The upper face of the arm has pivoted thereto a strap 9, by means of a screw 10, which is threaded into a suitable aperture formed in the body of said arm. The free end of the strap is provided with a longitudinal slot 9', through which the clamping bolt 5 extends and the extreme end of said strap is also formed with a downturned gripping lip 9, which lip is turned downwardly for the purpose of protection, whereby it is rendered less liable to catch into obstructions. The strap is slotted for adjustment of the arm and clamping rollers against the face of the windows, as shown in Fig. 2, and when so adjusted, these parts are locked by means of a knurled thumb nut 5", which is in threaded engagement with the bolt 5.

From the foregoing description, it will be observed that when the several strap units of the device are not in use, they are folded into alinement, whereby they will be nested in the narrow confines of the strap bracket, and furthermore by referring to Fig. 3 of the. drawings, it will be observed that they are also nested in a vertical plane, due to the fact that the upper surface of the arm 7 will come within a vertical plane slightly below the top surface of the loop 4, and thus the strap 9 which rests upon the upper surface of the loop will also serve as at protecting element for the parts. In other words, this strap when folded constitutes a housing for the various parts, and the downturned lip portion also carries out the idea of providing the nested elements in such relations that there will be no corner or projections which are liable to form contact points. Obviously, the only part which projects above the assemblage is the knurled nut 5, and this nut necessarily must be exposed in order that access may be hadthereto. Due to the fact that it is circular in form, however, there is slight chance to cause injury.

I claim: I

. A clamp adaptedto be fastened to a Window comprising a narrow strap bracket, having an intermediate perforated loop, an arm in pivotal union withone end of the bracket having a gripping roller at its free end, a slotted strap having one end in pivotal union with the arm, a clamping bolt extending through the apertured bracket loop and arm slot, the strap bracket, arm and strap being of the same general width, whereby when they are folded to inactive position, they come in nested alinement, the roller carrying end of the arm being in juxtaposition to the bracket loop and the strap overhanging the same to form a casing ,for the parts thereunder. 1

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in

the county of Milwauk-e and State of'VVisconsin.

HERMAN N. STRUEBING. 

